The Fungi Kingdom Mycology - the study of fungi fungi - singular fungus - plural 1) fungi are eukaryotic •they have a nuclei & mitochondria 2) they are heterotrophs •they depend on other organisms for food 3) they are multicellular 4) they cannot move on their own 4 Main Characteristics of Fungi
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The Fungi Kingdom
Mycology -the study of fungi
fungi - singular
fungus - plural
1) fungi are eukaryotic
•they have a nuclei & mitochondria
2) they are heterotrophs•they depend on other organisms for food
3) they are multicellular
4) they cannot move on their own
4 Main Characteristics of Fungi
1) fungi lack chlorophyll
2) fungi are not photosynthetic
•cannot produce their own food
3) they never reproduce by seeds
4) most fungi have cell walls made of chitin… Except molds
4 Reasons Fungi Are Different From Plants
cellulose•Plant cell walls are made of what?
•molds have cell walls made of cellulose…like plants
•most are saprophytes
•some are parasites
Saprophyte-feeds on dead/decaying organisms
• The foods people eat
Fungi contribute to:
• To medicine
• To the recycling process that releases nutrients from dead organisms back into the environment
When I make beer I give thousands of yeast false hope by feeding them sugar, before ruthlessly drowning them in their own alcoholic waste and drinking their dead corpses.
Parts of fungi:
Hyphae - network of thin thread-like structures that form the “body” of a fungus
▫ hyphae grow and branch until they cover and digest the food source outside their bodies by secreting enzymes that break down organic material which the fungi absorb through their cell walls.
• hyphae contain cytoplasm
hypha - singular
hyphae - plural
Parts of fungi:
Mycelium - a mass of hyphae
mycelia - plural
•The mycelium is usually hidden in the soil, in wood, or another food source
•A mycelium may fill a single ant, or cover many acres
single hypha Mass of hyphae (mycelium)
Germ tube (Growing Spore)
(initial hypha)
The ‘living’ body of the fungus is a mycelium
The part of the fungus that we see is only the “fruit” of the organism
Where does fungi grow?
• Anywhere there is food and moisture
• Fungi can grow as much as 1 km per day
• In Michigan, a mushroom with a mycelium covering 150,000 square meters and weighing 100 metric tonnes is probably the largest organism in the world (about the same as an adult blue whale. It is believed to be 1,500 to 10,000 years old
A mushroom that is 7.5 cm wide can release how many spores?
• This mushroom could release 40 million spores per hour.